Non Purchased Loans - Restructured Loans by Class (Details) - Non-Purchased $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan	7	11	14
Pre-Modification Outstanding Recorded Investment	$ 647	$ 1,858	$ 1,616
Post-Modification Outstanding Recorded Investment	$ 644	$ 1,852	$ 1,232
Commercial, financial, agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan	2		2
Pre-Modification Outstanding Recorded Investment	$ 187		$ 331
Post-Modification Outstanding Recorded Investment	$ 185		$ 330
Real estate – 1-4 family mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan	5	9	8
Pre-Modification Outstanding Recorded Investment	$ 460	$ 1,764	$ 598
Post-Modification Outstanding Recorded Investment	$ 459	$ 1,763	$ 586
Real estate – commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan		2	3
Pre-Modification Outstanding Recorded Investment		$ 94	$ 683
Post-Modification Outstanding Recorded Investment		$ 89	$ 313
Installment loans to individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans \| loan			1
Pre-Modification Outstanding Recorded Investment			$ 4
Post-Modification Outstanding Recorded Investment			$ 3

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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